Home / 76,973.40-106,212.66-42,977.92

Finding the Fourth Proportional to 76,973.40, 106,212.66 and 42,977.92

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Solution

The fourth proportional to 76,973.40, 106,212.66 and 42,977.92 is: 59,303.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,973.40 : 106,212.66 = 42,977.92 : x
  2. Step 2: Convert to fraction form
    76,973.40/106,212.66 = 42,977.92/x
  3. Step 3: Cross multiply
    76,973.40x = 106,212.66 × 42,977.92
  4. Step 4: Simplify right side
    76,973.40x = 4,564,799,204.47
  5. Step 5: Solve for x
    x = 4,564,799,204.47/76,973.40
  6. Step 6: Final answer
    x = 59,303.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.